STUDY ON ANALYSIS AND APPLICATION OF CHARACTERISTIC FLOW PASSAGE AREA IN STEAM TURBINES

ZHANG Lunzhu1; WANG Yunmin1; XU Damao2; MA Hailong1 1.College of Energy and Power Engineering

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STUDY ON ANALYSIS AND APPLICATION OF CHARACTERISTIC FLOW PASSAGE AREA IN STEAM TURBINES

更新时间：2025-09-28

- STUDY ON ANALYSIS AND APPLICATION OF CHARACTERISTIC FLOW PASSAGE AREA IN STEAM TURBINES
- Thermal Power Generation Vol. 41, Issue 3, Pages: 29-31(2012)
- 作者机构：
  
  1. 长沙理工大学能源与动力工程学院
  2. 中广核工程有限公司
- 作者简介：
- 基金信息：
- DOI：
  CLC： TK261
- Published：2012
- 稿件说明：
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ZHANG Lunzhu1, WANG Yunmin1, XU Damao2, et al. STUDY ON ANALYSIS AND APPLICATION OF CHARACTERISTIC FLOW PASSAGE AREA IN STEAM TURBINES[J]. Thermal power generation, 2012, 41(3): 29-31.
DOI：

ZHANG Lunzhu1, WANG Yunmin1, XU Damao2, et al. STUDY ON ANALYSIS AND APPLICATION OF CHARACTERISTIC FLOW PASSAGE AREA IN STEAM TURBINES[J]. Thermal power generation, 2012, 41(3): 29-31. DOI：

摘要

根据弗留格尔公式

经过数学推导给出了汽轮机特征通流面积的表达式

并结合某超超临界600MW机组进行计算。结果表明

当机组变工况在50%～100%额定负荷运行时

除个别点(第7级组)外

级组的特征通流面积偏差变化在±1.5%之内。同时

指出特征通流面积在机组运行性能分析、建立单个机组热力性能数据库、变工况计算、在线监测与诊断等方面的应用途径。

Abstract

Based on the Flugel formula

an expression formula of the characteristic flow passage area in steam turbines has been given through mathematic deduction.Combined with one ultra-supercritical 600 MW unit

results of calculation show that the variation of deviation value concerning the characteristic flow passage area of every stage-group(not including stage-group no.7) is within ±1.5% when the unit is in operation under variable condition with 50%~100% rated load.Besides

the ways regarding application of characteristic flow pasage area in many aspects

such as the performance analysis in operation of unit

the establishment of thermal performance database of single unit

the calculation of variable operation condition

as well as the on-line monitoring and diagnosis etc.

have been pointed out.

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